Green Economy Efficiency Evaluation And Convergence Test Of Urban Agglomeration In The Yellow River Basin

The Yellow River Basin is the birthplace of Chinese Civilization.During an inspections in Jinan Shandong,Xi Jinping expressed that the Yellow River Basin should firmly follow the path of green and low-carbon development and promote the reform of economic efficiency.It means that the improvement of green economic efficiency has become a major practical problem in the ecological civilization construction in the Yellow River Basin.However,due to the differences in economic development,factor endowment and industrial structure,the green economic efficiency’s levels,changing trajectories,internal differences and convergence properties of urban agglomerations in the Yellow River Basin are not the same.Scientifically grasping the spatial-temporal evolution pattern,spatial difference composition and long-term convergence and dispersion nature of green economic efficiency of urban agglomerations in the Yellow River Basin could differentiated strategies be implemented according to local conditions,so as to effectively improve the level of economic green and finally realize the green development of the whole Yellow River Basin.The research contents of this thesis include: Firstly,the Min DS model is used to measure the green economic efficiency of seven major urban agglomerations in the Yellow River Basin from 2004 to 2019,and the economic development of each city is evaluated from the perspectives in the whole,the urban agglomeration and the city.Secondly,the spatial distribution and dynamic evolution characteristics of green economic efficiency in urban agglomerations are investigated by Markov Chain and Kernel Density Estimation.Thirdly,Theil Index and Geo Detector are used to analyze the variation trend,source contribution and internal driving factors of the spatial difference of green economy efficiency.Finally,the convergence and divergence of green economy efficiency are identified by σ Convergence,β Convergence and Club Convergence tests.The results show that:(1)The overall green economic efficiency of the seven urban agglomerations in the Yellow River Basin has a waving upward trend and a spatial distribution characteristic like "high in the east and low in the west".Shandong Peninsula Urban Agglomerations has higher green economy efficiency and faster economic growth.Taiyuan Urban Agglomerations is trapped in low efficiency and low speed.(2)The spatial difference of green economy efficiency in the seven urban agglomerations is narrowing,but the overall difference and intra-difference shows signs of rebound after 2017.The differences within urban agglomerations contribute to the overall differences.The inner difference between Lanxi Urban Agglomeration and Hu Bao E Urban Agglomeration is greater than the others.(3)In the short term,the green economy efficiency is solidified to some extent,but with the extension of time,its plasticity is improved and has an obvious upward transfer trend.Low level cities and middle and low level cities have a high probability of jump transfer.(4)There are σ Convergence,absolute β Convergence and Conditional β Convergence in the green economic efficiency of the seven urban agglomerations,and club convergence generally exists in the urban agglomerations.The improvement of factor endowment structure and technological progress have a significant role in promoting the green economy efficiency,while the financial development and industrial structure upgrading have no expected impact on the green economy efficiency.It has a spatial distribution characteristics of "high concentration,low concentration" and the spatial spillover effect.High-level cities have a driving effect on the surrounding low-level cities.Based on the above research conclusions,the green development of urban agglomerations in the Yellow River Basin is still in the initial stage and there is a large space for improvement.In order to promote the coordinated improvement of green economic efficiency in the region,the thesis thinks that urban agglomerations should continue to strengthen the concept of green development and promote the green economic transformation.At the same time,objectively understanding the difference of green economy efficiency,the implementation of differentiated promotion countermeasures;Finally,giving full play to spatial spillover effect and actively explore the convergence mechanism of green economic efficiency.